I just acquired a "new" project, and am in the process of going through everything. 1927 Star Durant M Roadster, with 4 cyl. Continental. My question is with starter Bendix. It seems my gear that engages on the flywheel stays engaged. I haven't started it, but tried cranking to see if working. Everything cranks, but gear stays. The spring seems intact, so what am I missing? Does the gear disengage due to centrifugal force at higher rpms? It seems the gear should retract on spiral shaft away from flywheel. Any comments greatly appreciated. I thought the old girl would be simple and fun to keep "the basics" , but like smart phones she's kicking my butt!